a website collaboration between Science Service and the Smithsonian Institution

1944 - transparent molded plastic junction box


CD 2478043 E&MP12.010

Electric Appliances & Apparatus

August 26, 1944

Electric junction boxes, made of transparent molded plastic, are light in weight, safe, and permit inspection without opening.

Flat plates, either plastic or metal, are used as bases for the attachment of all wiring.

A typical box is shown in the picture. 



[closer look]

Original Caption by Science Service

National Museum of American History


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